Hi, I use postfix as an smtp client to deliver email to our enterprise smtp server. Since the smtp server needs authentication, I used cyrus sasl with postfix and things worked fine. After a portupgrade, postfix has stopped working, and gives some wierd authentication error. Googling did not help much, and hence I am posting here. Relevant details follow: ----------8<----------------- Postfix version: postfix-2.4.1,1 Cyrus SASL version: cyrus-sasl-2.1.22 Postfix built with: (contents of makedefs.out) SYSTYPE = FREEBSD6 AR = ar ARFL = rv RANLIB = ranlib SYSLIBS = -L/usr/local/lib -lpcre -L/usr/local/lib -lsasl2 -lpam -lcrypt CC = cc -DHAS_PCRE -I/usr/local/include -DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I /usr/local/include -I/usr/local/include/sasl OPT = -O2 -fno-strict-aliasing -pipe DEBUG = AWK = awk STRCASE = EXPORT = AUXLIBS='-L/usr/local/lib -lpcre -L/usr/local/lib -lsasl2 -lpam -lcryp t' CCARGS='-DHAS_PCRE -I/usr/local/include -DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/u sr/local/include -I/usr/local/include/sasl' OPT='-O2 -fno-strict-aliasing -pipe ' DEBUG='' WARN = -Wall -Wno-comment -Wformat -Wimplicit -Wmissing-prototypes \ -Wparentheses -Wstrict-prototypes -Wswitch -Wuninitialized \ -Wunused main.cf has the following entries: # cyrus sasl stuff smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/usr/local/etc/postfix/sasl_passwd smtp_security_options = sasl_passwd.db exists created with postmap hash: command Error in the maillog shows: May 31 14:35:12 zimbu postfix/smtp[49765]: warning: SASL authentication failure: GSSAPI Error: Miscellaneous failure (see text) (open(/tmp/krb5cc_125): No such file or directory) May 31 14:35:12 zimbu postfix/smtp[49765]: 1E722B895: to=<xyz@xxxxxxx>, relay=smtp.foo.com[xx.xx.xx.xx]:25, delay=1.4, delays=0.02/0.01/1.4/0, dsn=4.7.0, status=deferred (SASL authentication failed; cannot authenticate to server smtp.foo.com[xx.xx.xx.xx]: generic failure) I don't quiet understand the first message of "no such file or directory". I used exactly the same configuration earlier, and postfix was happily working for the last year or so. Any pointers to fix this issue will be appreciated. Thanks in advance! -Amarendra